A New Hampshire woman was removed from a JetBlue flight after tweeting about a pilot's sobriety.

Lisa Carter-Knight of Exeter was waiting to board a plane in Philadelphia on Tuesday. JetBlue says it was delayed when the pilot believed another passenger accused him of being intoxicated. JetBlue said as a precaution, a sobriety test was conducted; the pilot was cleared.

Carter-Knight made posts to Twitter about the pilot accusing passengers of questioning his sobriety and took photos from the terminal. The flight eventually left four hours behind schedule, but Carter-Knight was denied boarding.

JetBlue said if it feels a customer isn't complying with safety instructions, exhibits unobjectionable behavior or causes conflict, the customer will be asked to leave. Carter-Knight got a refund.